332 T. D. A. COCKERELL. 



PS EU DOS MI A Rads. 

 Two species are in the Museum ; they both have the integument 

 black, not at all blue or green ; they seem to offer no structural 

 characters of generic importance, and Dalla Torre is apparently cor- 

 rect in regarding the group as a subgenus of Osmia. 



Pseudosniia jakoi lv\ i (Rads.) 9- 



Transcaspia. Medium sized bee, with white ventral scopa, five 

 narrow but distinct white apical hair-bands on abdomen ; very 

 large head and sage-green eyes. Mandibles broad, with three teeth, 

 not counting inner angle; no malar space; antenna? short; b. n. 

 passing some distance basad of t. m. ; pulvillus large. 



Pseudosniia askhabadensis (Bads.) V - 



Semsaul, Merw. Much smaller than the last; scopa white, the 

 same white hair-bands, but the first two broadly interrupted in the 

 middle; eyes purplish-brown ; basal uervure meets t. m. a little on 

 the outer (apicad) side. 



OSMIA Panzer. 

 Osmia simillima Sin. 9 (T.). 



Scopa black. Is an Osmia s. str. sens. Rob., and runs in Robert- 

 son's table to 0. major. The male placed with it (collected by 

 Redman in Nova Scotia) is a Monilosmia, and is steel blue, quite 

 different from the dark blue of the 9 • They are certainly different 

 species. 



Osmia frigida Sm. 9 (T). 



Scopa black. Is an Osmia s. str. sens. Rob., and also would run 

 to 0. major, but is a black species with a very large head. The 

 male has third antennal joint only just longer than fourth ; middle 

 femur and tarsi simple; apical margin of fifth dorsal abd. s. fringed 

 with pale reddish hair; apical margin of sixth dorsal segment 

 (which is very broad) entire, or very faintly notched medially, 

 curved outwards ; of seventh narrow, deeply emarginate but not 

 bidentate (Smith wrongly sa} f s entire) ; venter broad and flat, red- 

 dish, first segment not emarginate. 



* However, Mr. Titus has examined the mouth-parts of another species of 

 Pse,udosmia, and considers that they afford good generic characters. 



